▎ 摘　　要

NOVELTY - The device has a device main body arranged with a graphene thin film (110) and a heating device. A portion of the graphene film is disposed above the heating device. The graphene film is arranged with a first area and a second area, where a resistance value of the first area of the graphene film and the second area of the graphene film are different or conductivity of the first area of the graphene film and the second area of the graphene film are different. The device main body is provided with a printed circuit board (17). The heating device is arranged on the printed circuit board. USE - Electronic device for use in a fifth generation (5G) communication system. Uses include but are not limited to a mobile phone, a tablet computer, a notebook computer, a smart wristband, a smartwatch, an intelligent helmet, an intelligent glass, a cellular telephone, a cordless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL) station, a personal digital assistant (PDA) and a handheld device. ADVANTAGE - By multiplexing the graphene, the problem that the radiator of the radiating component and the antenna structure in the electronic device are affected with each other can be solved. The heat conduction of the heat source can be uniformly distributed on the whole of the graphene film, so as to realize the purpose of cooling the electronic element of the overheating. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of graphene film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the electronic device. 17Printed circuit board 19Electronic device frame 20Battery 110Graphene thin film 111Graphene region 112Graphene second region